Search the web with Google from any site, Eliminate pop-up ads, Fill in forms with one click, Link a weblog to the page you're visiting, Restrict your search to pages located in a specific country, Search just within the pages of a site, Highlight search terms on a page, Customize the layout of your toolbar.

Hotbar is an add-on that instantaneously converts your email and browser applications into powerfully personalized instruments of enhanced functionality and visual appeal. Hotbar is comprised of 2 toolbars:
1. The Hotbar Browser Toolbar presents buttons on your Internet Explorer browser that change while you surf to relate to the website you visit. These buttons also provide you instant access to Search, Yellow Pages and more! The Browser toolbar also spices up your Internet Explorer with your chosen image (skin) picked from a huge variety of skins numbering into the thousands found in hundreds of galleries at www.hotbar.com.
2. The Hotbar Email Toolbar is added to your mail (Outlook , Outlook Express, Hotmail and Yahoo mail) . This bar offers a wide assortment of options for customizing the design of your emails with Backgrounds, eCards, Animations and even a Business Card of your own design.

SideStep offers a rich selection of
flight, hotel, and rental car bargains - including the largest
selection of "Web-only" fares available online. SideStep searches more
than 140 Web sites for the best travel deals from 585 airlines, 40,000
hotels and 2,800 rental car locations worldwide.

With MSN Toolbar, Search becomes a powerful resource tool. To begin a search, enter keywords or phrases into the Search box. Click Highlight and you’ll immediately spot the keywords in your results return list. Click the Pop-up Guard button in MSN Toolbar to block or allow pop-ups from appearing as you surf. You’ll see the number of pop-ups you’ve blocked, and you can choose to allow pop-ups from particular Web sites by adding them to your Allow List.One click takes you to your MSN Hotmail account, MSN Messenger or your personalized My MSN page.

Yahoo! Companion is a free,
personalizable toolbar that allows you to customize your toolbar with
buttons for your favorite Yahoo! services, save your favorite
bookmarks online and access them from any computer, and get alerts
when you have new Yahoo! Mail.